Re: [PATCH BUGFIX V3] block, bfq: add requeue-request hook

[Mike Galbraith <efault@gmx.de>]

On Mon, 2018-02-12 at 08:24 +0100, Paolo Valente wrote:
> 
> > Il giorno 10 feb 2018, alle ore 09:29, Oleksandr Natalenko <oleksandr@natalenko.name> ha scritto:
> > 
> > Hi.
> > 
> > On pï¿œtek 9. ï¿œnora 2018 18:29:39 CET Mike Galbraith wrote:
> >> On Fri, 2018-02-09 at 14:21 +0100, Oleksandr Natalenko wrote:
> >>> In addition to this I think it should be worth considering CC'ing Greg
> >>> to pull this fix into 4.15 stable tree.
> >> 
> >> This isn't one he can cherry-pick, some munging required, in which case
> >> he usually wants a properly tested backport.
> >> 
> >> 	-Mike
> > 
> > Maybe, this could be a good opportunity to push all the pending BFQ patches 
> > into the stable 4.15 branch? Because IIUC currently BFQ in 4.15 is just 
> > unusable.
> > 
> > Paolo?
> > 
> 
> Of course ok for me, and thanks Oleksandr for proposing this.  These
> commits should apply cleanly on 4.15, and FWIW have been tested, by me
> and BFQ users, on 4.15 too in these months.

How does that work without someone actually submitting patches? ï¿œCC
stable and pass along a conveniently sorted cherry-pick list?

9b25bd0368d5 block, bfq: remove batches of confusing ifdefs
a34b024448eb block, bfq: consider also past I/O in soft real-time detection
4403e4e467c3 block, bfq: remove superfluous check in queue-merging setup
7b8fa3b900a0 block, bfq: let a queue be merged only shortly after starting I/O
1be6e8a964ee block, bfq: check low_latency flag in bfq_bfqq_save_state()
05e902835616 block, bfq: add missing rq_pos_tree update on rq removal
f0ba5ea2fe45 block, bfq: increase threshold to deem I/O as random
0d52af590552 block, bfq: release oom-queue ref to root group on exit
52257ffbfcaf block, bfq: put async queues for root bfq groups too
8abef10b3de1 bfq-iosched: don't call bfqg_and_blkg_put for !CONFIG_BFQ_GROUP_IOSCHED
8993d445df38 block, bfq: fix occurrences of request finish method's old name
8a8747dc01ce block, bfq: limit sectors served with interactive weight raising
a52a69ea89dc block, bfq: limit tags for writes and async I/O
a78773906147 block, bfq: add requeue-request hook

> ---
> > 
> > block, bfq: add requeue-request hook
> > bfq-iosched: don't call bfqg_and_blkg_put for !CONFIG_BFQ_GROUP_IOSCHED
> > block, bfq: release oom-queue ref to root group on exit
> > block, bfq: put async queues for root bfq groups too
> > block, bfq: limit sectors served with interactive weight raising
> > block, bfq: limit tags for writes and async I/O
> > block, bfq: increase threshold to deem I/O as random
> > block, bfq: remove superfluous check in queue-merging setup
> > block, bfq: let a queue be merged only shortly after starting I/O
> > block, bfq: check low_latency flag in bfq_bfqq_save_state()
> > block, bfq: add missing rq_pos_tree update on rq removal
> > block, bfq: fix occurrences of request finish method's old name
> > block, bfq: consider also past I/O in soft real-time detection
> > block, bfq: remove batches of confusing ifdefs
> > 
> > 
>